add PixelDimension/PixelCoordinate types, convert Terrain to use them, and convert/clean up drawing code
#ifndef SINGLE_PLAYER_HH
#define SINGLE_PLAYER_HH
#include "GameState.hh"
class SinglePlayer : public LocalPlayer {
public:
SinglePlayer (GameState &state) :
Player(state, Vector(PLAYER_INITIAL_X, PLAYER_INITIAL_Y), true)
{
}
};
#endif /* SINGLE_PLAYER_HH */